d'Alembert operator

Meaning

Noun

• A differential operator which may be expressed as $\backslash partial\_\backslash mu\; \backslash partial^\backslash mu\; =\; \backslash sum\_\{\backslash mu\; =\; 0\}^3\; \{\backslash partial\; \backslash over\; \backslash partial\; x^\backslash mu\}\{\backslash partial\; \backslash over\; \backslash partial\; x\_\backslash mu\}$; it is the four-dimensional (Minkowski space) equivalent of the three-dimensional Laplace operator.

Related

Similar words

• box operator
• d'Alembertian
• wave operator

Origin

• Named after Jean le Rond d'Alembert (1717–1783), a French mathematician, mechanician, physicist, philosopher, and music theorist.